1228247047 has 2 divisors, whose sum is σ = 1228247048. Its totient is φ = 1228247046.

The previous prime is 1228247023. The next prime is 1228247057. The reversal of 1228247047 is 7407428221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1228247047 - 2⁷ = 1228246919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1228246997 and 1228247015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228247057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614123523 + 614123524.

It is an arithmetic number, because the mean of its divisors is an integer number (614123524).

Almost surely, 2^1228247047 is an apocalyptic number.

1228247047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228247047 is an equidigital number, since it uses as much as digits as its factorization.

1228247047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50176, while the sum is 37.

The square root of 1228247047 is about 35046.3556878600. The cubic root of 1228247047 is about 1070.9320341523.

The spelling of 1228247047 in words is "one billion, two hundred twenty-eight million, two hundred forty-seven thousand, forty-seven".